CVE-2023-43660Network attack vector

Authentication bypass via unsigned SSH key offer

Published Sep 27, 2023 · Updated Sep 20, 2024

Improper authentication in Warptech Industries Warpgate before 0.8.1 allows remote attackers to access SSH targets via an unsigned key offer. The SSH server accepted a public-key offer as successful authentication before requiring a signature, allowing a request built from a known username, target name, and registered public key to pass. Exploitation requires an account configured for public-key-only authentication; the result is unauthorized access to the account's assigned SSH target, while no service interruption is reported.

CVSS severity8.1
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Warptech Industries Warpgate before 0.8.1 allows remote attackers to access SSH targets via an unsigned key offer. The SSH server accepted a public-key offer as successful authentication before requiring a signature, allowing a request built from a known username, target name, and registered public key to pass. Exploitation requires an account configured for public-key-only authentication; the result is unauthorized access to the account's assigned SSH target, while no service interruption is reported.

The record

CVE
CVE-2023-43660
Published
Sep 27, 2023
Updated
Sep 20, 2024
Vendor
Warptech Industries
Product
Warpgate
Classifications
CWE-287, CWE-347, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Warptech Industries · Warpgateversion=< 0.8.1

Published CVSS scores

8.1NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.2GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-347Improper Verification of Cryptographic Signature
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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